package com.lqk.netty.protocoltcp;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;

import java.nio.charset.Charset;

public class MyClientHandler extends SimpleChannelInboundHandler<MessageProtocol> {

    private int count;

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        // 使用客户端发送10条数据
        for (int i=0;i<5;++i){
            String msg="今天天气冷，吃火锅";
            byte[] content = msg.getBytes(Charset.forName("UTF-8"));
            int length=msg.getBytes(Charset.forName("utf-8")).length;

            // 创建协议包对象
            MessageProtocol messageProtocol = new MessageProtocol();
            messageProtocol.setLen(length);
            messageProtocol.setContent(content);
            ctx.writeAndFlush(messageProtocol);
        }
    }

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, MessageProtocol msg) throws Exception {
        int len = msg.getLen();
        byte[] content = msg.getContent();

        System.out.println("客户端接收到消息如下：");
        System.out.println("长度="+len);
        System.out.println("内容="+new String(content,Charset.forName("utf-8")));

        System.out.println("客户端接收消息数据量="+(++count));
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("异常消息="+cause.getMessage());
        ctx.close();
    }

}
